All categories

3 years ago

Solve the system equations. X+2y=0 10y=-5

Mathematics

1 answer:

nexus9112 [7]3 years ago

5 0

Answer:

x=1

y=-1/2

Step-by-step explanation:

x+2y=0....(1)

10y=-5.....(2)

From (2) we can find y.

y=-5/10

y=-1/2

Use that in (1)

x+2*(-1/2)=0

x-1=0

x=1

You might be interested in

PLEASE SCREENSHOT AND MARKUP FOR 40 POINTS

alukav5142 [94]

Answer:

That seems hard sorry i couldn't help

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Please help me I dont get this :( number 4

jonny [76]

[x = amount earning 6% annually.]
(8000-x) = amount earning 15% annually
Then we set up our equation which is a sum of the 15% return and the 6% return and we let that sum equal our desired return on investment ($930). Then solve for x.
(8000-x)*.15 + x*.06 = 930
1200 - .15x + .06x = 930
.09x = 270
x = 3000.
Therefore, you should invest $3000 at 6% and $5000 at 15% to earn $930 annually.

4 0

3 years ago

5tenths=Blank hundreths

SSSSS [86.1K]

Answer:

Step-by-step explanation:

5/10 = 50/100 as equivalent fractions

5 0

2 years ago

Please help. Thank you. :)

adelina 88 [10]

Hello!

To find the lateral area you use the equation

$\pi r \sqrt{ h^{2} + r^{2} }$

You put in the values you know and you get 829.4

To find the surface area you use the equation

$\pi r(r+ \sqrt{ h^{2} + r^{2} }$

Put in the values you know and you get 1209.5

The answer is A

Hope this helps!

5 0

2 years ago

Maria has 2 more than 4

Ksju [112]

Answer:

2022

Step-by-step explanation:

2 + 4x = y

y = 2 + 4(505)

y = 2 + 2020

y = 2022

4 0

2 years ago